mirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2025-04-26 01:58:06 +02:00
Code Activity

Refactor class method names.

Browse source 
Also move functionality to more logical place in canvas.js and jpx.js.
This commit is contained in:
Kalervo Kujala 2012-04-04 23:43:26 +03:00
parent 921c1e82a3
commit 99440ab691
15 changed files with 1554 additions and 1543 deletions
Download patch file Download diff file Expand all files Collapse all files

80
src/stream.js
View file

@ -18,14 +18,14 @@ var Stream = (function StreamClosure() {
get length() {
return this.end - this.start;
},
getByte: function stream_getByte() {
getByte: function Stream_getByte() {
if (this.pos >= this.end)
return null;
return this.bytes[this.pos++];
},
// returns subarray of original buffer
// should only be read
getBytes: function stream_getBytes(length) {
getBytes: function Stream_getBytes(length) {
var bytes = this.bytes;
var pos = this.pos;
var strEnd = this.end;
@ -40,28 +40,28 @@ var Stream = (function StreamClosure() {
this.pos = end;
return bytes.subarray(pos, end);
},
lookChar: function stream_lookChar() {
lookChar: function Stream_lookChar() {
if (this.pos >= this.end)
return null;
return String.fromCharCode(this.bytes[this.pos]);
},
getChar: function stream_getChar() {
getChar: function Stream_getChar() {
if (this.pos >= this.end)
return null;
return String.fromCharCode(this.bytes[this.pos++]);
},
skip: function stream_skip(n) {
skip: function Stream_skip(n) {
if (!n)
n = 1;
this.pos += n;
},
reset: function stream_reset() {
reset: function Stream_reset() {
this.pos = this.start;
},
moveStart: function stream_moveStart() {
moveStart: function Stream_moveStart() {
this.start = this.pos;
},
makeSubStream: function stream_makeSubstream(start, length, dict) {
makeSubStream: function Stream_makeSubStream(start, length, dict) {
return new Stream(this.bytes.buffer, start, length, dict);
},
isStream: true
@ -94,7 +94,7 @@ var DecodeStream = (function DecodeStreamClosure() {
}
DecodeStream.prototype = {
ensureBuffer: function decodestream_ensureBuffer(requested) {
ensureBuffer: function DecodeStream_ensureBuffer(requested) {
var buffer = this.buffer;
var current = buffer ? buffer.byteLength : 0;
if (requested < current)
@ -107,7 +107,7 @@ var DecodeStream = (function DecodeStreamClosure() {
buffer2[i] = buffer[i];
return (this.buffer = buffer2);
},
getByte: function decodestream_getByte() {
getByte: function DecodeStream_getByte() {
var pos = this.pos;
while (this.bufferLength <= pos) {
if (this.eof)
@ -116,7 +116,7 @@ var DecodeStream = (function DecodeStreamClosure() {
}
return this.buffer[this.pos++];
},
getBytes: function decodestream_getBytes(length) {
getBytes: function DecodeStream_getBytes(length) {
var end, pos = this.pos;
if (length) {
@ -144,7 +144,7 @@ var DecodeStream = (function DecodeStreamClosure() {
this.pos = end;
return this.buffer.subarray(pos, end);
},
lookChar: function decodestream_lookChar() {
lookChar: function DecodeStream_lookChar() {
var pos = this.pos;
while (this.bufferLength <= pos) {
if (this.eof)
@ -153,7 +153,7 @@ var DecodeStream = (function DecodeStreamClosure() {
}
return String.fromCharCode(this.buffer[this.pos]);
},
getChar: function decodestream_getChar() {
getChar: function DecodeStream_getChar() {
var pos = this.pos;
while (this.bufferLength <= pos) {
if (this.eof)
@ -162,18 +162,18 @@ var DecodeStream = (function DecodeStreamClosure() {
}
return String.fromCharCode(this.buffer[this.pos++]);
},
makeSubStream: function decodestream_makeSubstream(start, length, dict) {
makeSubStream: function DecodeStream_makeSubStream(start, length, dict) {
var end = start + length;
while (this.bufferLength <= end && !this.eof)
this.readBlock();
return new Stream(this.buffer, start, length, dict);
},
skip: function decodestream_skip(n) {
skip: function DecodeStream_skip(n) {
if (!n)
n = 1;
this.pos += n;
},
reset: function decodestream_reset() {
reset: function DecodeStream_reset() {
this.pos = 0;
}
};
@ -188,14 +188,14 @@ var FakeStream = (function FakeStreamClosure() {
}
FakeStream.prototype = Object.create(DecodeStream.prototype);
FakeStream.prototype.readBlock = function fakeStreamReadBlock() {
FakeStream.prototype.readBlock = function FakeStream_readBlock() {
var bufferLength = this.bufferLength;
bufferLength += 1024;
var buffer = this.ensureBuffer(bufferLength);
this.bufferLength = bufferLength;
};
FakeStream.prototype.getBytes = function fakeStreamGetBytes(length) {
FakeStream.prototype.getBytes = function FakeStream_getBytes(length) {
var end, pos = this.pos;
if (length) {
@ -368,7 +368,7 @@ var FlateStream = (function FlateStreamClosure() {
FlateStream.prototype = Object.create(DecodeStream.prototype);
FlateStream.prototype.getBits = function flateStreamGetBits(bits) {
FlateStream.prototype.getBits = function FlateStream_getBits(bits) {
var codeSize = this.codeSize;
var codeBuf = this.codeBuf;
var bytes = this.bytes;
@ -388,7 +388,7 @@ var FlateStream = (function FlateStreamClosure() {
return b;
};
FlateStream.prototype.getCode = function flateStreamGetCode(table) {
FlateStream.prototype.getCode = function FlateStream_getCode(table) {
var codes = table[0];
var maxLen = table[1];
var codeSize = this.codeSize;
@ -453,7 +453,7 @@ var FlateStream = (function FlateStreamClosure() {
return [codes, maxLen];
};
FlateStream.prototype.readBlock = function flateStreamReadBlock() {
FlateStream.prototype.readBlock = function FlateStream_readBlock() {
// read block header
var hdr = this.getBits(3);
if (hdr & 1)
@ -823,7 +823,7 @@ var JpegStream = (function JpegStreamClosure() {
JpegStream.prototype = Object.create(DecodeStream.prototype);
JpegStream.prototype.ensureBuffer = function jpegStreamEnsureBuffer(req) {
JpegStream.prototype.ensureBuffer = function JpegStream_ensureBuffer(req) {
if (this.bufferLength)
return;
try {
@ -840,18 +840,18 @@ var JpegStream = (function JpegStreamClosure() {
error('JPEG error: ' + e);
}
};
JpegStream.prototype.getIR = function jpegStreamGetIR() {
JpegStream.prototype.getIR = function JpegStream_getIR() {
return bytesToString(this.bytes);
};
JpegStream.prototype.getChar = function jpegStreamGetChar() {
JpegStream.prototype.getChar = function JpegStream_getChar() {
error('internal error: getChar is not valid on JpegStream');
};
/**
* Checks if the image can be decoded and displayed by the browser without any
* further processing such as color space conversions.
*/
JpegStream.prototype.isNativelySupported = function isNativelySupported(xref,
res) {
JpegStream.prototype.isNativelySupported =
function JpegStream_isNativelySupported(xref, res) {
var cs = ColorSpace.parse(this.dict.get('ColorSpace'), xref, res);
// when bug 674619 lands, let's check if browser can do
// normal cmyk and then we won't need to decode in JS
@ -865,8 +865,8 @@ var JpegStream = (function JpegStreamClosure() {
/**
* Checks if the image can be decoded by the browser.
*/
JpegStream.prototype.isNativelyDecodable = function isNativelyDecodable(xref,
res) {
JpegStream.prototype.isNativelyDecodable =
function JpegStream_isNativelyDecodable(xref, res) {
var cs = ColorSpace.parse(this.dict.get('ColorSpace'), xref, res);
var numComps = cs.numComps;
if (numComps == 1 || numComps == 3)
@ -892,7 +892,7 @@ var JpxStream = (function JpxStreamClosure() {
JpxStream.prototype = Object.create(DecodeStream.prototype);
JpxStream.prototype.ensureBuffer = function jpxStreamEnsureBuffer(req) {
JpxStream.prototype.ensureBuffer = function JpxStream_ensureBuffer(req) {
if (this.bufferLength)
return;
@ -972,7 +972,7 @@ var JpxStream = (function JpxStreamClosure() {
this.buffer = data;
this.bufferLength = data.length;
};
JpxStream.prototype.getChar = function jpxStreamGetChar() {
JpxStream.prototype.getChar = function JpxStream_getChar() {
error('internal error: getChar is not valid on JpxStream');
};
@ -992,7 +992,7 @@ var DecryptStream = (function DecryptStreamClosure() {
DecryptStream.prototype = Object.create(DecodeStream.prototype);
DecryptStream.prototype.readBlock = function decryptStreamReadBlock() {
DecryptStream.prototype.readBlock = function DecryptStream_readBlock() {
var chunk = this.str.getBytes(chunkSize);
if (!chunk || chunk.length == 0) {
this.eof = true;
@ -1023,7 +1023,7 @@ var Ascii85Stream = (function Ascii85StreamClosure() {
Ascii85Stream.prototype = Object.create(DecodeStream.prototype);
Ascii85Stream.prototype.readBlock = function ascii85StreamReadBlock() {
Ascii85Stream.prototype.readBlock = function Ascii85Stream_readBlock() {
var tildaCode = '~'.charCodeAt(0);
var zCode = 'z'.charCodeAt(0);
var str = this.str;
@ -1118,7 +1118,7 @@ var AsciiHexStream = (function AsciiHexStreamClosure() {
AsciiHexStream.prototype = Object.create(DecodeStream.prototype);
AsciiHexStream.prototype.readBlock = function asciiHexStreamReadBlock() {
AsciiHexStream.prototype.readBlock = function AsciiHexStream_readBlock() {
var gtCode = '>'.charCodeAt(0), bytes = this.str.getBytes(), c, n,
decodeLength, buffer, bufferLength, i, length;
@ -1161,7 +1161,7 @@ var RunLengthStream = (function RunLengthStreamClosure() {
RunLengthStream.prototype = Object.create(DecodeStream.prototype);
RunLengthStream.prototype.readBlock = function runLengthStreamReadBlock() {
RunLengthStream.prototype.readBlock = function RunLengthStream_readBlock() {
// The repeatHeader has following format. The first byte defines type of run
// and amount of bytes to repeat/copy: n = 0 through 127 - copy next n bytes
// (in addition to the second byte from the header), n = 129 through 255 -
@ -1671,7 +1671,7 @@ var CCITTFaxStream = (function CCITTFaxStreamClosure() {
CCITTFaxStream.prototype = Object.create(DecodeStream.prototype);
CCITTFaxStream.prototype.readBlock = function ccittFaxStreamReadBlock() {
CCITTFaxStream.prototype.readBlock = function CCITTFaxStream_readBlock() {
while (!this.eof) {
var c = this.lookChar();
this.buf = EOF;
@ -1729,7 +1729,7 @@ var CCITTFaxStream = (function CCITTFaxStreamClosure() {
this.codingPos = codingPos;
};
CCITTFaxStream.prototype.lookChar = function ccittFaxStreamLookChar() {
CCITTFaxStream.prototype.lookChar = function CCITTFaxStream_lookChar() {
if (this.buf != EOF)
return this.buf;
@ -2140,7 +2140,7 @@ var CCITTFaxStream = (function CCITTFaxStreamClosure() {
return 1;
};
CCITTFaxStream.prototype.lookBits = function ccittFaxStreamLookBits(n) {
CCITTFaxStream.prototype.lookBits = function CCITTFaxStream_lookBits(n) {
var c;
while (this.inputBits < n) {
if ((c = this.str.getByte()) == null) {
@ -2155,7 +2155,7 @@ var CCITTFaxStream = (function CCITTFaxStreamClosure() {
return (this.inputBuf >> (this.inputBits - n)) & (0xFFFF >> (16 - n));
};
CCITTFaxStream.prototype.eatBits = function ccittFaxStreamEatBits(n) {
CCITTFaxStream.prototype.eatBits = function CCITTFaxStream_eatBits(n) {
if ((this.inputBits -= n) < 0)
this.inputBits = 0;
};
@ -2192,7 +2192,7 @@ var LZWStream = (function LZWStreamClosure() {
LZWStream.prototype = Object.create(DecodeStream.prototype);
LZWStream.prototype.readBits = function lzwStreamReadBits(n) {
LZWStream.prototype.readBits = function LZWStream_readBits(n) {
var bitsCached = this.bitsCached;
var cachedData = this.cachedData;
while (bitsCached < n) {
@ -2210,7 +2210,7 @@ var LZWStream = (function LZWStreamClosure() {
return (cachedData >>> bitsCached) & ((1 << n) - 1);
};
LZWStream.prototype.readBlock = function lzwStreamReadBlock() {
LZWStream.prototype.readBlock = function LZWStream_readBlock() {
var blockSize = 512;
var estimatedDecodedSize = blockSize * 2, decodedSizeDelta = blockSize;
var i, j, q;